It shall be understood that a designation has been made by portion only in case the testator may have expressly assigned a share to each heir.\nThe phrase 'one half to each or in equal parts', or any other which, though designating an aliquot part, should not fix it numerically or in such manner as to make each of them the owner of an estate severally, does not exclude the right of accretion.\nHistory —Civil Code, 1930, § 938.
Puerto Rico Legal Code